textproduct: Quad Cities
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- An upper low will continue to spin near our local area through Tuesday morning, leading to occasional showers and continued cool and cloudy conditions.
- Expectations for several beautiful early Fall days are growing for mid week, with highs in the 60s and lows in the 40s/50s.
SHORT TERM /THROUGH MONDAY NIGHT/
Issued at 117 PM CDT Sun Sep 20 2026
The ongoing areal flood warnings will continue through early afternoon, as several creeks are known to be flooding in eastern Iowa, including Indian Creek in Linn County. Though some flooding will continue, the water was reported to have stopped rising early this morning, and impacts will be improving this afternoon/evening, resulting in expirations of the flood watch, and areal flood warnings.
Additional rain the next 24 hours. in the short term will be very light, and under 0.25 with certainty. However, as is often the case in cool season events, this will be a high pop, low qpf event today, and again Monday/Monday night leading to an overall wet period continuing through through Tuesday morning.
Tonight through Monday night, generally cool, cloudy conditions with northeast winds at 10 to 15 mph will continue. Lows in the upper 40s to mid 50s can be expected. Highs under the clouds, much like today, will struggle to reaching the mid 60s.
LONG TERM /TUESDAY THROUGH SUNDAY/
Issued at 117 PM CDT Sun Sep 20 2026
The mid week, the flow aloft is less predictable in a messy blocky pattern, but for us, the surface is expected to be mainly dry, with temperatures rising to the mid 60s to lower 70s, and lows in the 40s to mid 50s.
Looking out towards next weekend, we are expecting temperatures to warm into the upper 60s to mid 70s, which is near seasonal normals.
AVIATION /00Z TAFS THROUGH 00Z TUESDAY/
Issued at 715 PM CDT Sun Sep 20 2026
Widespread low stratus will continue over eastern Iowa and northwest Illinois, resulting in periods of MVFR/IFR ceilings. The most likely area for periods of IFR are at BRL with MLI on the northern periphery. Patchy drizzle is also possible overnight into Monday AM. Otherwise, steady northeast to east- northeast winds will continue through Monday (with gusts around 20 kts at times).
DVN WATCHES/WARNINGS/ADVISORIES
IA...None. IL...None. MO...None.
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